Phone Armor. Protect your cell phone on the job site with a Defender Series case from OtterBox. It provides three layers of protection — a clear plastic wrap, a hard plastic shell, and an outer layer of shock-absorbing rubber — to keep your phone safe from drops, dust, and scratches, says the maker. Cases are available for a variety of phones, MP3 players, and other personal electronic devices. They cost about $50 from the manufacturer. OtterBox, 888/695-8820. www.otterbox.com
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